Katie Couric co-founded Stand Up For Cancer after losing her husband Jay to the disease in 1998.
This year’s show will be broadcast live on over 20 networks simultaneously, including ABC, CBS, Fox and NBC September 9th. Check out this list of celebs so far… Gwyneth Paltrow, Julia Roberts, Matt Damon, Michael Douglas, Jessica Biel, Samuel L. Jackson, Jeremy Renner, Seth Rogen, Emma Stone, Taylor Swift, Coldplay, Alicia Keys and Tim McGraw. It should be pretty cool!